Video tutorials

Conversion of a knife mechanism from circular knife to crush cut knife

In contrast to continuous shear cutting with top and bottom knives, only one cutting edge is used in the crush cut knife. It is pressed with high pressure through the material to be cut onto a counter shaft.

The main advantage of crush cutters is the very short set-up time. You can change over from one job to the next very quickly, thus reducing downtimes.

Setting up a spherical friction shaft

Friction shafts consist of individual segments (friction rings) that can be twisted in relation to each other. This means that rolls with different diameters, for example, can be wound onto the same shaft even though they rotate at different speeds.

Friction linings inside the shaft are pressed against the friction rings using compressed air. The transmitted torque can be adjusted by varying the air pressure.

In order to achieve uniform winding of the rolls, it is recommended to maintain a lead of the friction shaft of up to 5% compared to the web speed.

Die-cutting and cutting with two die-cutting units

In this rotary die-cutting machine, two die-cutting tool holders (die-cutting heads, die-cutting modules) are arranged one behind the other. In this way, the multiple blanks can be die-cutted very close together in the first die-cutting unit, weeded immediately afterwards and cut precisely between the blanks with the second rotary die-cutting head. Even if the distance between the die-cutted parts is less than 1 mm, individual rolls can be cut in this way. The EASYline RII-320 thus comes very close to the goal of maximizing the use of space and minimizing waste (die-cutting waste) as much as possible.

As our die-cutting machines have a modular design, attachments such as additional winders and unwinders, a greater distance between the die-cutting units and, for example, laminating stations can be added to the basic system design.